基于时域特征的角位移传感器信号线间串扰方法研究  

Research on Crosstalk Between Signal Lines of Angular Displacement Sensor Based on Time Domain Characteristics

作　　者：卢晓玲 LU Xiaoling(Department of Mechanical and Electrical Engineering,Anhui Automobile Vocational and Technical College,Hefei Anhui 230601,China)

机构地区：[1]安徽汽车职业技术学院机电工程系,安徽合肥230601

出　　处：《传感技术学报》2021年第9期1211-1215,共5页Chinese Journal of Sensors and Actuators

基　　金：安徽省高校科学研究重点项目(KJ2019A1309)。

摘　　要：传统串扰方法计算得到的数据时域特征较弱,难以应用到不同的信号线间串扰问题分析中,为此提出基于时域特征的角位移传感器信号线间串扰方法。根据串扰基本原理,提取角位移传感器参数特性,通过相敏检波计算信号频率差异值,得到角位移传感器信号的时域特征,构建基于时域特征的串扰模型。设置单线、绞线以及屏蔽线三组不同的信号线,利用本文提出的方法和传统方法获取串扰数据。实验结果表明,两组方法可以获得角位移传感器与单线间的串扰;当端接电阻值增大到100Ω时,本文方法能够获得角位移传感器与绞线间的串扰;当测试角位移传感器与屏蔽线间的串扰时,本文方法可以获得具有对称性质的近端与远端串扰波形。The time-domain characteristics of the data calculated by traditional crosstalk methods are weak,so it is difficult to apply to the analysis of crosstalk between different signal lines.Therefore,a method of crosstalk between signal lines of angular displacement sensor based on time-domain characteristics is proposed.According to the basic principle of crosstalk,the parameter characteristics of the angular displacement sensor are extracted,and the frequency difference value of the signal is calculated by phase sensitive detection.The time-domain characteristics of the angular displacement sensor signal are obtained,and the crosstalk model based on the time-domain characteristics is constructed.Set up three groups of different signal lines:single wire,stranded wire and shielded wire,and use the method proposed in this paper and the traditional method to obtain crosstalk data.The experimental results show that the two methods can obtain the crosstalk between the angular displacement sensor and the single wire;When the termination resistance increases to 100ΩThis method can obtain the crosstalk between the angular displacement sensor and the stranded wire.When the crosstalk between the angular displacement sensor and the shield wire is tested,the symmetrical crosstalk waveforms of the near end and the far end can be obtained.

关 键 词：角位移传感器 信号线间 串扰方法 时域特征 串扰数据 

分 类 号：TN47[电子电信—微电子学与固体电子学]